Home / 14,581.58-20,122.95-8,208.40

Finding the Fourth Proportional to 14,581.58, 20,122.95 and 8,208.40

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Solution

The fourth proportional to 14,581.58, 20,122.95 and 8,208.40 is: 11,327.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,581.58 : 20,122.95 = 8,208.40 : x
  2. Step 2: Convert to fraction form
    14,581.58/20,122.95 = 8,208.40/x
  3. Step 3: Cross multiply
    14,581.58x = 20,122.95 × 8,208.40
  4. Step 4: Simplify right side
    14,581.58x = 165,177,240.98
  5. Step 5: Solve for x
    x = 165,177,240.98/14,581.58
  6. Step 6: Final answer
    x = 11,327.81

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.